Remove check for scalar(vertex,edge or path) agtypes in unwind

[MuhammadTahaNaveed]

• Removed check that was disabling unwind to be used on arrays with elements of type vertex,edge or path.
• Added regression tests for unwind.

[emotionbug]

If you think the block_types variable is no longer needed, please modify the code associated with it as well.

age/age--1.2.0.sql

Lines 4165 to 4170 in 6e8836b

	CREATE FUNCTION ag_catalog.age_unnest(agtype, block_types boolean = false)
	RETURNS SETOF agtype
	LANGUAGE c
	IMMUTABLE
	PARALLEL SAFE
	AS 'MODULE_PATHNAME';

age/src/backend/parser/cypher_clause.c

Lines 1333 to 1336 in b09160f

	funcexpr = ParseFuncOrColumn(pstate, unwind->funcname,
	list_make2(expr, makeBoolConst(true, false)),
	pstate->p_last_srf, unwind, false,
	target_syntax_loc);

[MuhammadTahaNaveed]

Hi @emotionbug,

I did not modify those after seeing this comment.

What do you think, should it be modified?

[emotionbug]

I think that variable is for the constraint you removed.
Since you've already determined that the constraint is unnecessary and removed it, I think the comments and code around it should also be modified.

Because even if you don't, it's already doing nothing with the variable, and it's not what the comment says.

[MuhammadTahaNaveed]

I think that variable is for the constraint you removed.
Since you've already determined that the constraint is unnecessary and removed it, I think the comments and code around it should also be modified.

Because even if you don't, it's already doing nothing with the variable, and it's not what the comment says.

Ok thanks. I will update the PR.

[jrgemignani]

@MuhammadTahaNaveed I'm not sure why your commit description comments say Co-authored-by you?

[MuhammadTahaNaveed]

@MuhammadTahaNaveed I'm not sure why your commit description comments say Co-authored-by you?

@jrgemignani Fixed it.